Irwin Magnetic 1/4 In. x 2-9/16 In. Nutdriver Bit
Lobular design drive reduces stripping damage by driving fasteners on flats instead of forcing the corners. Ideal for fast, easy driving of nuts, bolts, and hex head screws. Rugged single-piece construction provides long life under constant use. Magnetic shaft holds fastener securely. Universal 1/4' hex shank with power groove.